teshsuite/s4u/storage_client_server/storage_client_server.cpp

   1 /* Copyright (c) 2013-2015, 2017. The    SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #include "simgrid/s4u.hpp"
   8 #include <string>
   9
  10 XBT_LOG_NEW_DEFAULT_CATEGORY(storage, "Messages specific for this simulation");
  11
  12 static void display_storage_properties(simgrid::s4u::Storage* storage)
  13 {
  14   xbt_dict_cursor_t cursor = NULL;
  15   char* key;
  16   char* data;
  17   xbt_dict_t props = storage->properties();
  18   if (xbt_dict_length(props) > 0) {
  19     XBT_INFO("\tProperties of mounted storage: %s", storage->name());
  20     xbt_dict_foreach (props, cursor, key, data)
  21       XBT_INFO("\t\t'%s' -> '%s'", key, data);
  22   } else {
  23     XBT_INFO("\tNo property attached.");
  24   }
  25 }
  26
  27 static sg_size_t write_local_file(const char* dest, sg_size_t file_size)
  28 {
  29   simgrid::s4u::File* file = new simgrid::s4u::File(dest, nullptr);
  30   sg_size_t written        = file->write(file_size);
  31   XBT_INFO("%llu bytes on %llu bytes have been written by %s on /sd1", written, file_size,
  32            simgrid::s4u::Actor::self()->name().c_str());
  33   delete file;
  34   return written;
  35 }
  36
  37 static sg_size_t read_local_file(const char* src)
  38 {
  39   simgrid::s4u::File* file = new simgrid::s4u::File(src, nullptr);
  40   sg_size_t file_size      = file->size();
  41   sg_size_t read           = file->read(file_size);
  42
  43   XBT_INFO("%s has read %llu on %s", simgrid::s4u::Actor::self()->name().c_str(), read, src);
  44   delete file;
  45
  46   return read;
  47 }
  48
  49 // Read src file on local disk and send a put message to remote host (size of message = size of src file)
  50 static void hsm_put(const char* remote_host, const char* src, const char* dest)
  51 {
  52   // Read local src file, and return the size that was actually read
  53   sg_size_t read_size = read_local_file(src);
  54
  55   // Send file
  56   XBT_INFO("%s sends %llu to %s", simgrid::s4u::this_actor::name().c_str(), read_size, remote_host);
  57   char* payload                    = bprintf("%s %llu", dest, read_size);
  58   simgrid::s4u::MailboxPtr mailbox = simgrid::s4u::Mailbox::byName(remote_host);
  59   simgrid::s4u::this_actor::send(mailbox, payload, static_cast<double>(read_size));
  60   simgrid::s4u::this_actor::sleep_for(.4);
  61 }
  62
  63 static void display_storage_content(simgrid::s4u::Storage* storage)
  64 {
  65   XBT_INFO("Print the content of the storage element: %s", storage->name());
  66   std::map<std::string, sg_size_t*>* content = storage->content();
  67   if (!content->empty()) {
  68     for (auto entry : *content)
  69       XBT_INFO("\t%s size: %llu bytes", entry.first.c_str(), *entry.second);
  70   } else {
  71     XBT_INFO("\tNo content.");
  72   }
  73 }
  74
  75 static void dump_storage_by_name(char* name)
  76 {
  77   XBT_INFO("*** Dump a storage element ***");
  78   simgrid::s4u::Storage& storage = simgrid::s4u::Storage::byName(name);
  79   display_storage_content(&storage);
  80 }
  81
  82 static void get_set_storage_data(const char* storage_name)
  83 {
  84   XBT_INFO("*** GET/SET DATA for storage element: %s ***", storage_name);
  85   simgrid::s4u::Storage& storage = simgrid::s4u::Storage::byName(storage_name);
  86
  87   char* data = (char*)storage.userdata();
  88   XBT_INFO("Get data: '%s'", data);
  89   storage.setUserdata(xbt_strdup("Some data"));
  90   data = (char*)storage.userdata();
  91   XBT_INFO("\tSet and get data: '%s'", data);
  92   xbt_free(data);
  93 }
  94
  95 static void dump_platform_storages(void)
  96 {
  97   std::unordered_map<std::string, simgrid::s4u::Storage*>* storages = simgrid::s4u::Storage().allStorages();
  98
  99   for (auto storage : *storages) {
 100     XBT_INFO("Storage %s is attached to %s", storage.first.c_str(), storage.second->host());
 101     storage.second->setProperty("other usage", xbt_strdup("gpfs"));
 102   }
 103   // Expected output in tesh file that's missing for now
 104   //> [  1.207952] (server@alice) Storage Disk3 is attached to carl
 105   //> [  1.207952] (server@alice) Storage Disk4 is attached to denise
 106 }
 107
 108 static void storage_info(simgrid::s4u::Host* host)
 109 {
 110   XBT_INFO("*** Storage info on %s ***", host->cname());
 111   xbt_dict_cursor_t cursor = NULL;
 112   char* mount_name;
 113   char* storage_name;
 114
 115   xbt_dict_t storage_list = host->mountedStoragesAsDict();
 116   xbt_dict_foreach (storage_list, cursor, mount_name, storage_name) {
 117     XBT_INFO("\tStorage name: %s, mount name: %s", storage_name, mount_name);
 118     simgrid::s4u::Storage& storage = simgrid::s4u::Storage::byName(storage_name);
 119
 120     sg_size_t free_size = storage.sizeFree();
 121     sg_size_t used_size = storage.sizeUsed();
 122
 123     XBT_INFO("\t\tFree size: %llu bytes", free_size);
 124     XBT_INFO("\t\tUsed size: %llu bytes", used_size);
 125
 126     display_storage_properties(&storage);
 127     dump_storage_by_name(storage_name);
 128   }
 129   xbt_dict_free(&storage_list);
 130 }
 131
 132 static void client()
 133 {
 134   hsm_put("alice", "/home/doc/simgrid/examples/msg/icomms/small_platform.xml", "c:\\Windows\\toto.cxx");
 135   hsm_put("alice", "/home/doc/simgrid/examples/msg/parallel_task/test_ptask_deployment.xml", "c:\\Windows\\titi.xml");
 136   hsm_put("alice", "/home/doc/simgrid/examples/msg/alias/masterslave_forwarder_with_alias.c", "c:\\Windows\\tata.c");
 137
 138   simgrid::s4u::MailboxPtr mailbox = simgrid::s4u::Mailbox::byName("alice");
 139   simgrid::s4u::this_actor::send(mailbox, xbt_strdup("finalize"), 0);
 140
 141   get_set_storage_data("Disk1");
 142 }
 143
 144 static void server()
 145 {
 146   storage_info(simgrid::s4u::this_actor::host());
 147   simgrid::s4u::MailboxPtr mailbox = simgrid::s4u::Mailbox::byName(simgrid::s4u::this_actor::host()->cname());
 148
 149   XBT_INFO("Server waiting for transfers ...");
 150   while (1) {
 151     char* msg = static_cast<char*>(simgrid::s4u::this_actor::recv(mailbox));
 152     if (!strcmp(msg, "finalize")) { // Shutdown ...
 153       xbt_free(msg);
 154       break;
 155     } else { // Receive file to save
 156       char* saveptr;
 157       char* dest              = strtok_r(msg, " ", &saveptr);
 158       sg_size_t size_to_write = std::stoull(strtok_r(nullptr, " ", &saveptr));
 159       write_local_file(dest, size_to_write);
 160       xbt_free(dest);
 161     }
 162   }
 163
 164   storage_info(simgrid::s4u::this_actor::host());
 165   dump_platform_storages();
 166 }
 167
 168 int main(int argc, char* argv[])
 169 {
 170   simgrid::s4u::Engine* e = new simgrid::s4u::Engine(&argc, argv);
 171   xbt_assert(argc == 2, "Usage: %s platform_file\n", argv[0]);
 172   e->loadPlatform(argv[1]);
 173
 174   simgrid::s4u::Actor::createActor("server", simgrid::s4u::Host::by_name("alice"), server);
 175   simgrid::s4u::Actor::createActor("client", simgrid::s4u::Host::by_name("bob"), client);
 176
 177   e->run();
 178
 179   XBT_INFO("Simulated time: %g", e->getClock());
 180
 181   return 0;
 182 }